Preparing the definition field…
Ringmaker · Definition laboratory
Draw the ring.
Watch it break.
The famous outline is a documented choice, not a natural border. Adjust the Restless Pacific rule and inspect every volcano that moves.
Read the disagreementSmithsonian11
↔Restless Pacific rule10
Recomputing…Included by bothSmithsonian onlyRestless Pacific rule onlyExcluded by both
Demonstration subset · live API unavailable
What moved · subduction settings
Every rule
makes an edge.
Smithsonian’s reviewed set and the Restless Pacific rule agree on 9 volcanoes. The useful evidence is at the boundary: what one definition includes and the other leaves outside.
Reproducible result
Definition receipt.
A count without its inputs is only atmosphere. This receipt keeps the source version, rule, result, and fingerprint together.
- Baseline
- Smithsonian PROF 5.3.6
- Restless Pacific rule
- subduction settings
- Catalog universe
- 13 Holocene volcanoes
- Result
- 10 included
- Fingerprint
fallback:demonstration-subset
Map-equivalent evidence
Inspect the membership.
| Volcano | Comparison | Smithsonian | Restless Pacific rule | Last eruption | Convergent boundary |
|---|---|---|---|---|---|
| New Zealand | Smithsonian only | Included | Outside | 1446 | 191 km |
| Japan | Smithsonian only | Included | Outside | 1707 | 99 km |
| Indonesia | Restless Pacific rule only | Outside | Included | 2022 | 157 km |
Method before myth